Polemonium, commonly called Jacob's ladders or Jacob's-ladders, is a genus of between 25 and 40 species of flowering plants in the family Polemoniaceae, native to cool temperate to arctic regions of the Northern Hemisphere. One species also occurs in the southern Andes in South America. Many of the species grow at high altitudes, in mountainous areas. Most of the uncertainty in the number of species relates to those in Eurasia, many of which have been synonymized with Polemonium caeruleum.
The Polemoniaceae are a family of flowering plants consisting of about 25 genera with 270–400 species of annuals and perennials native to the Northern Hemisphere and South America, with the center of diversity in western North America.
Polemonium caeruleum, known as Jacob's-ladder or Greek valerian, is a hardy perennial flowering plant. The plant produces cup-shaped, blue or white flowers. It is native to temperate regions of Europe. It is the type species of the phlox family, Polemoniaceae.
Cardamine concatenata, the cutleaved toothwort, crow's toes, pepper root or purple-flowered toothwort, is a flowering plant in the family Brassicaceae. It is a perennial woodland wildflower native to eastern North America.
Hydrophyllum virginianum, commonly called Virginia waterleaf or eastern waterleaf, is a species of plant in the borage family (Boraginaceae). It is an herbaceous perennial plant native to Eastern North America where it is primarily found in the Midwest, Northeast, and Appalachian regions.
Allium cernuum, known as nodding onion or lady's leek, is a perennial plant in the genus Allium. It grows in open areas in North America.
Carex pauciflora, known as few-flowered sedge, is a perennial species of sedge in the family Cyperaceae native to bogs and fens in cool temperate, subarctic, and mountainous regions of the Northern Hemisphere. The specific epithet pauciflora refers to the Latin term for 'few flowered'.
Trillium sulcatum is a species of flowering plant in the bunchflower family Melanthiaceae. It is a member of the Erectum group, a group of species typified by Trillium erectum. The specific name sulcatum means "furrowed, grooved, or sulcate", which describes the tips of the sepals. It is most abundant on the Cumberland Plateau in central Tennessee and eastern Kentucky where it blooms in April and May. The species is commonly known as the southern red trillium or furrowed wakerobin.
Solidago rugosa, commonly called the wrinkleleaf goldenrod or rough-stemmed goldenrod, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread across eastern and central Canada and the eastern and central United States. It is usually found in wet to mesic habitats.
Lilium grayi is a perennial plant that is endemic to the eastern US states of North Carolina, Virginia, and Tennessee, growing in moist, acid soil in the Appalachian mountains on higher elevation meadows, bogs, and seeps. The plant was introduced to Royal Botanic Gardens, Kew in 1890 and was featured in the Kew Bulletin in 1892.
Liatris helleri is a species of flowering plants in the family Asteraceae known by the common names Heller's blazing star and Heller's gayfeather. It is native to the Appalachian Mountains of the southeastern United States, found in the states of North Carolina, Virginia, West Virginia, and Maryland. It is threatened by recreational activities in its habitat, and is federally listed as a threatened species.
Antennaria plantaginifolia is a perennial forb native to the eastern North America, that produces cream colored composite flowers in spring.
Solidago uliginosa, or bog goldenrod, is a North American species of flowering plants in the family Asteraceae. It is found in eastern Canada and the eastern United States.
Gaylussacia orocola, is a plant species native only to the southern Appalachians of western North Carolina. This plant grows only in Mountain Bogs, severely limiting available habitat. This plant has many common names which may be shared with other species. It is known to The North Carolina Natural Heritage Program as the Appalachian dwarf huckleberry and The North Carolina Botanical Garden knows it as the Blue Ridge bog huckleberry. It may also be referred to as the Gopherberry, Blue Ridge huckleberry, or Dwarf Huckleberry.
Polemonium foliosissimum, the towering Jacob's-ladder, is a rare species of flowering plant in the phlox family Polemoniaceae, native to the western United States; Arizona, Colorado, Idaho, Nevada, New Mexico, Utah and Wyoming. As its synonym Polemonium archibaldiae it has gained the Royal Horticultural Society's Award of Garden Merit.
Triantha glutinosa is a species of flowering plant in the Tofieldiaceae family. It is commonly known as the sticky false asphodel, sticky tofieldia or northern bog asphodel, is a species of flowering plant in the tofieldia family.
Vaccinium fuscatum, the black highbush blueberry, is a species of flowering plant in the heath family (Ericaceae). It is native to North America, where it is found in Ontario, Canada and the eastern United States. Its typical natural habitat is wet areas such as bogs, pocosins, and swamps.
Phemeranthus calycinus, commonly called largeflower fameflower, rock pink, or fame flower is a species of flowering plant in the montia family (Montiaceae). It is native to the central United States, and its natural habitat is on glades, sandy areas, or bluffs with rock outcrops.
Trillium tennesseense, the Tennessee trillium, is a species of flowering plant in the family Melanthiaceae. It is found exclusively within two counties in northeastern Tennessee. Due to its limited range, it is designated as a critically imperiled species.
Trillium texanum, the Texas trillium or Texas wakerobin, is a species of flowering plant in the family Melanthiaceae. It is found in east Texas, extreme southwestern Arkansas, and extreme northwestern Louisiana. Due to its limited range, it is designated as a vulnerable species.
Flower buds (June 15)
Flowers (June 23)
Compound leaf (June 23)
